campbell



Aug. 25, 1925.

H. E. CAMPBELL METAL WINDOW FRAME AND SASHES Fild March '28, 1922 4Sheets-Sheet 1 I (7? Ij/YVZQiOR BY [$0, My

A TTORNE Y Ahg.25-, 1925. "1,551,510,

H. E. CAMPBELL METAL WINDOW FRAME AND SASHES Filed Marct 28, 1922 4 Sheets-S hee-t 2 IN VEN TOR ATTORNEY Aug. 25, 1925.

H. E. CAMPBELL METAL WINDOW FRAME AND SASHES 4 Sheets-Sheet 5 FiledMarch 28, 1922 1|l|l|||| 1| lllllllllllll l1 IIIIII II INVENIOR ATTORNEYAu 25. 192-5. 1 r

, 1922 4 Sheets-Sheet 4 Filed March 28 INVENTOR A TTORNEY Patented Aug.25, 1925.

' UNITED ESTA res] PATENI'IEOFFICE.

' HARRY E. oAMrBELL, on NEW YORK, v1v. Y., assreuoa 'ro CAMPBELL METALWINDOW QORPORATION, or BALTIMORE, MARYLAND, A CORPORATION or MARYLAND.

MErnnwI-Nnow FRAME Ann SASHES.

' Application filed March 28,.1922. Serial No. 547,429.

To all whom z'tmay concern.

Be it known that I, HARRY E. CAMrBnLL, a citizen of the United States,residing at New York, in the county of Newv York and State of New York,have invented. a

certain new and useful Improvement in Metal IVindowF'rames and Sashes,of which the following is a specification.

1 slide vertically past each other.

This invention relates to a window frame and sash construction in whichthe sashes The object of my invention is to make a device inwhich'positivesealingof the joints between the sashes and the jambs isobtained when thewindow is closed andlin the specific em bodiment of myinvention, illustrated in this specification, I accomplish this bycausing the final closing movement of the lower sash to wedge both theupper" and lower sashes tightly against jamb members for substantiallythe height of each sash. Other advantages of my construction will beapparent from the following description.

In the accompanying drawings I Fig. 1 is a front elevation of mywindowframe and sashes, showing the lower sash I raised for a shortdistance. In this figure the following parts are shown broken away,namely: the upper portion of the upper sash and frame, and thelowerportion of the rear wall of the jamb on the left hand side of thedrawing. A vertical portion of the inner wall of the jamb on the righthand side of the drawing is removed to show the parts otherwise covered!Fig. 2 is an enlarged section on the line 2, 2 of Fig. 1 viewed in thedirection of the I arrows 0:, a, of Fig. 1..

Fig. 3 is an enlarged vertical section on ,theline 3, 3of Fig. 1' of theframe and sashes, the lower sash here being shown partly raised. In thisfigure the upper portion of the upper sash and of the jamb shown isbroken away, and a-break is made at b' in order to reduce the height ofthe figure on the sheet.

Fig. 4 is an enlarged perspectiveview, showing a portion of the middlesection 11 of the inner wall of one of the jambs, the.

member J carrying said section, a portion of the lower sash, the lateralsash plates M, N and the inclined projectionsi3 1 and Figs. 5 and 6 arehorizontal diagrammatic views similar, to the section shown in Fig.

-2, and are here introduced to show the relinafter described, enter,while the other C:-receives the counterweights' for the sashes. 'Forpurposes of clearness, said counterweights, together with the suspensionchains by which they are connected to the sashes, the lintel and thesash pulleys within said lintel over which said chains pass, are alloniitted since their eneral arrangement Wlll besubstantially t e same as'shown in my Patent- No. 1,222,357, dated April 10, 1917.

The jamb A, as here shown, is formed of sheet metal and comprises anouter wall D,

a front wall E, a rear wall F and an inner wall G. The inner wall Gi-ismade in three sections 10, 11, 12, separated by the vertical'gaps H, Iwhich extend from top to .bottom of said wall. The section 10 of wall Gis hooked over'at its rear edge at 13 to receive the bent and hookedover edge 14 of wall F. Section 10 is held in place by a bolt 15 whichpasses through section 10 and is seated in a lug 16 on the sill 17 Thefront wall E is of less transverse width than. wall G a1. 1 is flangedat its edge 18, where it is united to the partition or wall 19 whichseparates the amb' compartments B, C. Said wall 19 extends beyondtheja-mbwall E and is bent parallel thereto at 20, and then again bentat a right angle to form section 12 of the inner-wall edges of sections10 and 12. Said middle section is. supported upon a'barrier member Jconstructed of sheet metal, as follows:

The front and rear sides are parallel. The. inner side 21 is channeledto receive any suitable packing material 22. In the see-- I pass the asshown at- 27 The otherfl'ange 26 extends beyond wall 19. Within member Jmay be I in communication with the room.

. rai1'30 of th'e'upper sash at a right angle and then vertically upwardat 32. Said vertical portions interlock when i the meeting rails cometogether. On the packing 28 which bears on wall 19.

K is the upper and L. the lower sashi" Their frames are of sheet metalhaving meeting rails 29, 30. Asbest shown in Fig' 3, the meeting rail 29of the lower sash is bent horizontally at a right angle and thenvertically'downward at 31. The meeting verticalportion 31 of meetingrail29 is secured a strip 33 of spring (metal which is bent to-enterbetween the portions 31, 32 when the saidz-meeting rails interlock, andto extend over, the top of portion 32. hen

meeting rails, and so prevents entrance of air or rattling at saidjoint.

Laterally extendingfrom the sheet metal 'siderails of the sashes, and,as here shown,

made integral therewith, are plates M and N which enter the jambsthrough the gaps II and I and travel therein when the sashes are moved.

Referring now to Figs. 5 and 6: It will be obvious that in order thatthe sash plates M, N may be moved freely in the gaps II, I, sufficientclearance must be present. \Vhen the upper sash is seated in closedposition, the portion of gap II which is below said sash willbe whollyopen to the external air. Said air then entering the compartment Bthrough said open portion of the gap will 'be free to pass through thejoint 0, Fig. 5,

between the sash plate M and the edge of middle section 11, and so intothe building or room. Clearly, closing the joint 0 will prevent thisdraft.

\Vhen the lower sash is seated in closed position on the sill, theportion of gap I which ,is.abovesaid sash will be open and External airentering the compartment B atthe joint P between the edge of sash plateN and middle section 11 will then pass into the room through said jointP and thence to the said open portion of gap I. ,Clearly, therefore,closing oint P will prevent this draft.

Now I close both of these joints simultancously by themovement of thelower sash as it reaches its shut or seated position on the sill. Or, inother words, although at all times while the sashes are being raised orlowered, abundant clearance exists in the gaps H, I to permit of thefree movement of said sashes, the simple pushing down of are flanges and26 which bear is bent horizontally I toropens and closes the sashes justas he would any ordinary sashes, and, without any necessaryknowlvertically sliding edge of how the result is obtained, causes theproper joints above noted to become closed. I

Referring first to'Fig. done: 7

In the vertical edge of extension plate N 4, this is how it is of thelower sash is an upwardly extending inclined projection 34, here shownas formed by cutting a tongue from the material of said plate. l On theedge of the flange 26 of barrier member J is another but upwardlyinclined projection 35, also here formed by cutting a tongue on saidedge. The inclined surfaces. of the two projections 34,- 35 both sashesare in closed position, said spring strip closes the joint between theare parallel, and the projection 34 is directly above the projection 35.The parts being in the positions shown in Fig. 5, the clearance thenallowing free movement of the plates M, N in the gaps H, I, vwhen thelower sash is moved downwardly to close it and shortly before it reachesits seated position, the projection 34 meets the projection- 35, and asthe sash continues its downward movement, two results occur, namely: asthe projection 34 rides over the projection 35, the sash plate N ismoved toward 'middlc section'll of jamb wall G, Fig. 5, until it closestightly .thejoint P, Fig. 6. At the same time, the projection 35 ismoved by the same means to cause the barrier member J to slide on wall19, this movement being permitted by the slot and bolt connections ofsaid member J with section 11, as shown at 24. By reason of thismovement, the

turned over end 27 of flange 25 acting upon extension plate M of theupper sash forces said extension plate M into contact with section 11,and so closes the joint at O. Both joints O and P are thus closedsimultaneously with and by reason of closing movement of the lower sash.I

In practice I prefer to use two pairs of projections 34,- 35, just alikeand similarly disposed relatively to one another but located atdifferent heights on the extension plate N, as shown in Fig. 1. Theoperation of both pairs is simultaneous and the same as has beendescribed with reference tobut one pair. The object is simply todistribute the application of the moving force more uniformly along theelongated parts affected, and since two points determine a line the factthat there are two pairs of projecheight, is drawn against an edge ofsection Itis to be noted that middle section 11 is :itself loose orfloating. Hence it is selfadjusting to the opposing contact pressures ofthe platesM and N, so that if through any irregularity of construction,for example, one joint or P becomes closed before the other, section .11beingloose will yield in one direction upon the closing of the firstjoint, and then will yield in the opposite direction and so readjustitself upon the closing of the second joint. Or, in other words, itfinds its own position with respect to the plates M, N bearing againstits edges,

in which position both joints. 0 and P will be tight. In windows of thistype hitherto made,

the clearance of the sash plates M, N in the gaps H, I has been kept assmall aspossible in order to reduce the area of possible air entrancearound the closed sashes. But

since, through my present invention, the oints 0, P are always closedwhen she sashes are shut, said clearance may be made of any desiredwidth, and may even be made- I so that said plates will'be suspendedclear of the gap edges. This does away with fricr tional contact atsaid-edges, permits of the sashes being very easily raised or lowered,

' and if the parts be painted affords ample space for any irregularitiesof paintsurface; while also protecting the paint from being removed bythe rubbing'together of said parts. v

Onlthezsill 17, Fig. 3, is formed a trans- I verse rib 36 of upwardlytapering cross sec- 1 tion.

formed of two sheet metal strips 37 an (i 38. 'The strip 37 on the frontside of the rail extends vertically downward below the same, while thestrip 38 on the rear side of the rail is bent at a right angle and then"turned downwardly 'at 39.

The channelshaped rail thus formed fits upon the rib 36 when the sash isshut. Hitherto it has been necessary in order to compensate formanufacturing irregularitiesto allow a considerable clearance betweenthe rail and therib, so that even after these parts had become seatedthere was opportunity for air entrance at the joint. But with the nowpossible wide clearance-in the gap I and the consequent suspensionof thelower sash therein, as described, it will be obvious that the rail hasample space to swing transto be understood that I. do not limit myselfThe lower rail of the lower sash is to a jamb thus provided. Verticallysliding window-sashes, as is well known, may have no counterweights andbe held in any desired position by means of clamps, bolts, catches orvarious other analogous devices; and, such sashes may also be arrangedin suspension devices whereby they I mutually counterweight one another.As my present invention is applicable to windows thus cons'tructed,itwill joe obvious in such event that a special cfi'ofrrpaitment in the,jamb to receive, sash counterweights will not be necessary.

I claim:

1. A Windowframe and sash construction comprising jambs having theirinner walls formedin three vertical sections with gaps between thesections, sashes extending into such'gaps, and means within .the jambsop e' rated bythe closing movement of the lower sash adaptedautomatically to cause both the upperand lower sash to be pressedagainst the middle vertical jamb sections when the window is closed.

2. construct-ion 1s defined in claim 1 in which the means for pressingthe sashes against the middle vertical jamb sections comprises a movableclamping member adapted to be operated by the lower sash.

3. A window frame comprising jambs,

two sashes sliding in said jambs, a pair of auxiliary members, oneforming a part of each jamb, and means for causing such members, as thewindow is finally closed, to move to hold a. face ofeach sash against aguide portion of the j'amb for substantially the height of each suchsash.

4. A'ifwindow frame comprising jambs, two s'ashessliding in said, jambs,a pair of auxiliary members, one forming a part of each jamb, and ineanscontrolled by the final closing and initial opening movement of thelower sash adapted automatically to .cause such members to move as thewindow is finally closed,to hold aface of each sash against a guideportion of the jamb for substantiallyth'e height of each sash, and

adapted automatically to permit such membars to move as the lower sashis initially opened to allow the lower sash to slide with space betwl(in it and such,fiXed amb portion. v

5. A window frame and sashes, comprising jambs having their innerv wallsformedin three vertical sections with gaps between the sections forreceiving the sashes, sashes slidable in such gaps, and having themiddle vertical sections movable in relation to the portion of the jambswhich support them, and auxiliary sealing means forming part of eachjanib adapted to cause a face of one sash to press against such. middlesections for substantially the entire height of such sash so thatsuch-middle sections are moved in relation to the portion of the jambwhich supports them and are pressed against a Face of the other sash forsubstantially the entire height of suchother sash.

6. A window frame and sashes, comprising jambshaving their inner wallsformed in three vertical sections with gaps between the sections forreceiving the sashes, sashes slidable in such gaps, a cam member in eachjamb, means for permitting relative move- 10 ment between the middlejamb sections and such cam members, and complementary cam memberscarried by the lower sash and adapted, as the lower sash is closed, tocooperate with such first mentioned cam memhere to press the lower sashagainst such middle sections and to cause such middle sections to bepressed against the upper sash.

' In testimony whereof I have afiixed by I signature.

HARRY E. CAMPBELL.

